BD-17°63

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BD–17°63
Observation data
Epoch J2000      Equinox J2000
Constellation Cetus
Right ascension 00h 28m 34.31s[1]
Declination −16° 13′ 34.8″[1]
Apparent magnitude (V) 9.63
Characteristics
Spectral type K4V[2]
Apparent magnitude (B) ~10.77[2]
Apparent magnitude (J) 7.574 ± 0.019[2]
Apparent magnitude (H) 7.027 ± 0.033[2]
Apparent magnitude (K) 6.914 ± 0.024[2]
Astrometry
Proper motion (μ) RA: –353.78 ± 1.45[1] mas/yr
Dec.: –228.96 ± 0.90[1] mas/yr
Parallax (π) 28.01 ± 1.27[1] mas
Distance 116 ± 5 ly
(36 ± 2 pc)
Absolute magnitude (MV) 6.87
Details
Mass 0.74 ± 0.03 M
Radius 0.69 R
Luminosity 0.21 L
Temperature 4714 ± 93 K
Metallicity [Fe/H] –0.03 ± 0.06 dex
Age 4.3 ± 4 Gyr
Other designations
2MASS J00283433-1613343, SAO 147293, HIP 2247, PPM 208851
Database references
SIMBAD data
Exoplanet Archive data
Extrasolar Planets
Encyclopaedia
data

BD-17°63 is an low-mass K type star in the southern constellation Cetus. It is a 9th magnitude star at a distance of about 116 light years from Earth.[1]

Planetary system[edit]

In October 2008 an extrasolar planet, BD-17°63 b, was reported to be orbiting this star. This object was detected using the radial velocity method by search programs conducted using the HARPS spectrograph.[3]

The BD-17°63 planetary system[3]
Companion
(in order from star)
Mass Semimajor axis
(AU)
Orbital period
(days)
Eccentricity Inclination Radius
b ≥5.1 ± 0.12 MJ 1.34 ± 0.02 655.6 ± 0.6 0.54 ± 0.005

See also[edit]

References[edit]

External links[edit]

Coordinates: Sky map 00h 28m 34.306s, −16° 13′ 34.84″